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English
c. Points for explanation about operations
4. Note to the installer
Be sure to instruct customers how to properly operate the unit (especially cleaning filters, operating dif-
ferent functions, and adjusting the temperature) by having them carry out operations themselves while
looking at the manual.
3. SELECTING INSTALLATION SITE
Please attach additional thermal insulation material to the unit body when it is believed that the relative humid-
ity in the ceiling exceeds 80%. Use glass wool, polyethylene foam, or similar with a thickness of 10 mm or
more as thermal insulation material.
1. Select an installation site where the following conditions are fulfilled and that meets
your customer’s approval.
•
In the upper space (including the back of the ceiling) of the indoor unit where there is no possible
dripping of water from the refrigerant pipe, drain pipe, water pipe, etc.
•
Where optimum air distribution can be ensured.
•
Where nothing blocks air passage.
•
Where condensate can be properly drained.
•
Where the ceiling is strong enough to bear the indoor unit weight.
•
Where the false ceiling is not noticeably on an incline.
•
Where sufficient clearance for maintenance and service can be ensured.
•
Where there is no risk of flammable gas leakage.
•
Where piping between indoor and outdoor units is possible within the allowable limit. (Refer to the
installation manual for the outdoor unit.)
CAUTION
•
Keep indoor unit, outdoor unit, power supply wiring and transmission wiring at least 1 meter away from
televisions and radios. This is to prevent image interference and noise in those electrical appliances.
(Noise may be generated depending on the conditions under which the electric wave is generated,
even if 1 meter is kept.)
2. Use suspension bolts for installation. Check whether the ceiling is strong enough to
support the weight of the unit or not. If there is a risk, reinforce the ceiling before
installing the unit.
(Installation pitch is marked on the paper pattern for installation. Refer to it to check for points requiring
reinforcement.)
The items with
WARNING and
CAUTION marks in the operation manual are the items pertaining
to possibilities for bodily injury and material damage in addition to the general usage of the product.
Accordingly, it is necessary that you make a full explanation about the described contents and also ask
your customers to read the operation manual.
300 or
more
(Service space)
Drain pipe
Power supply
wiring port
Liquid pipe
Gas pipe
Transmission
wiring port
Maintenance
drain hose
2500 or higher
from the floor
For installation
in high places
Floor
Required service space
01_EN_3P156215-4C.fm Page 5 Saturday, May 14, 2005 9:17 AM
